Model A2003101 High-Precision Milling & Engraving Spindle
Designed for Demanding Machining: Where Speed, Rigidity, and Accuracy Converge
The A2003101 represents a superior-grade electric spindle engineered for high-performance CNC engraving and milling centers. Featuring a robust 80mm outer diameter and a powerful 3.7 kW, 380V single-winding motor, it delivers an exceptional blend of high rotational speed (50,000 RPM) and substantial torque (1.2 N·m). This spindle is built to excel in applications requiring meticulous surface finish, tight tolerances, and efficient material removal across metals, composites, and advanced engineering materials.
Technical Overview & Design Philosophy
Crafted for stability under load, the A2003101 integrates a high-rigidity mechanical design with precision components. The utilization of four matched sets of 71905 precision angular contact ball bearings, combined with permanent grease lubrication, forms the foundation for its high stiffness, extended service life, and remarkably smooth operation. Its G0.4 dynamic balance grade ensures minimal vibration at high speeds, which is critical for achieving superior surface quality and protecting machine tool integrity. Designed for vertical installation, it is an ideal drop-in solution for enhancing the capability of modern machining centers.
Core Performance Advantages
- High-Speed Precision Machining: A maximum speed of 50,000 RPM enables fine-detail engraving, high-efficiency milling, and excellent surface finishes.
- Exceptional Structural Rigidity: High axial stiffness (50 N/µm) and radial stiffness (100 N/µm) minimize deflection during aggressive cuts, ensuring dimensional accuracy and repeatability.
- Robust Power & Torque: With 3.7 kW of continuous power and 1.2 N·m of torque, it handles a wide range of materials and cutting tools effectively.
- Reliable Automation Interface: Equipped with a standard ISO15 tool holder, a high drawbar force (700-1000N), and configured for NPN/NO tool change signals for seamless integration into automated systems.
- Advanced Thermal Management: Supports both oil or water cooling (flow >3 L/min, cooling power >0.5 kW) with a dedicated cooling unit, maintaining optimal operating temperature for continuous, heavy-duty cycles.
- Integrated Protection: Features air seal and purge functions (2-7 bar) to protect internal bearings from contamination.
Product Overview
The A2003101 is a robust 80mm-diameter electric spindle engineered for high-precision engraving and milling applications. Powered by a 380V single-winding motor, it delivers 3.7 kW of power and achieves a maximum speed of 50,000 rpm. Designed for vertical installation, it features an ISO15 tool holder, a high-rigidity bearing system (71905×4), and an integrated cooling system. This spindle is the ideal solution for operations demanding high speed, exceptional accuracy, and low vibration for superior surface finishes.
Key Features
- High Power & Speed: 380V single-winding motor provides 3.7 kW of power and 1.2 N·m of torque, reaching 50,000 rpm for efficient material removal and fine finishing.
- Exceptional Rigidity & Precision: Features outstanding radial (100 N/µm) and axial (50 N/µm) stiffness. Ultra-low runout (≤2.0 µm @25mm) and G0.4 dynamic balancing ensure high accuracy and superior surface quality.
- Robust & Reliable Design: Four high-precision angular contact bearings with grease lubrication ensure long life and minimal maintenance. Effective oil/water cooling maintains thermal stability during continuous operation.
- Engineered for Seamless Integration: Standard ISO15 tool interface, clear NPN/NO tool change signal, and sine wave encoder ensure easy integration with modern CNC systems.
Detailed Technical Specifications
| Category | Parameter | Specification |
|---|---|---|
| Core Performance | Maximum Speed | 50,000 rpm |
| Rated Power | 3.7 kW | |
| Rated Torque | 1.2 N·m | |
| Rated Voltage | 380 V (Single Winding) | |
| Precision & Rigidity | Radial Stiffness | 100 N/µm |
| Axial Stiffness | 50 N/µm | |
| Taper Runout | ≤ 2.0 µm @ 25mm; ≤ 3.0 µm @ 75mm | |
| Dynamic Balance Grade | G0.4 | |
| Mechanical Interface | Tool Holder | ISO15 |
| Bearing Specification | 71905 × 4 | |
| Lubrication | Grease | |
| Mounting Orientation | Vertical | |
| Drawbar Force | 700 – 1000 N | |
| System Interfaces & Requirements | Drive | Built-in Motor |
| Encoder | Sine Wave / 86-tooth | |
| Tool Change Signal | NPN/NO | |
| Air Seal Pressure | 2 – 7 bar | |
| Clean Air Pressure | 2 – 7 bar | |
| Tool Release Pressure | 5 – 7 bar | |
| Cooling System | Oil/Water Coolant (Flow >3 L/min, Cooling Power >0.5 kW, Max. Temp 30°C) | |
| Physical & Warranty | Spindle Weight | 8 kg |
| Warranty | 1 Year |
Target Applications & Industries
This spindle is ideally suited for precision machining tasks in:
- High-Speed Engraving & Detailed 3D Contouring of molds, dies, and prototypes.
- Precision Milling of aluminum, steel, titanium, and engineering plastics.
- Production of Components for the aerospace, automotive, and electronics industries.
- Manufacturing of Fine Mechanical Parts requiring excellent surface integrity and dimensional stability.
Commitment to Quality
Every A2003101 spindle is manufactured under stringent quality control processes. The combination of premium components, precision assembly, and a comprehensive 1-year warranty guarantees reliable performance and durability, minimizing downtime and maximizing your return on investment.
Elevate your machining capabilities. Contact our engineering team today to discuss how the A2003101 high-precision spindle can be integrated into your equipment or to explore tailored solutions for your specific application requirements.